酚醛树脂为HP砂轮3630

Specifications Properties CHARACTERISTIC PARAMETERHot plate cure time(150 C) 70-110 sec Inclined plate flow 13-18 mm Sieve analysis: (thru 200mesh) ≥98% Hexamine content 7.5- 8.5 % Water content 0.6- 1.0 % Free phenol ≤1.5% Shelf life 6 month at 20oC max. in dry place. Descriptions 3630 is a phenol-formaldehyde, powdered resin containing hexa. Hexa has been added during grinding. 3630 possesses high molecular weigt, high sthength and burst speed, outstanding heat resistance. Applications 3630 is employed as a binder for hot-pressed high density grinding wheels and is suggested to utilise in company with epoxy resin and grain wetting agent (such as furfurol).